Electrical & Computer Engineering Doctoral Work: Recent submissions
Now showing items 41-60 of 69
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Efficient Message Dissemination Framework for Diverse Wireless Networks
(North Dakota State University, 2014)Wireless networks exhibit diversity, ranging from mostly disconnected delay tolerant networks and partially connected mobile ad hoc networks, to mostly connected cellular networks. Besides having useful applications, ... -
Fault Tolerant and Adaptive Systems with Focus on Networks-On-Chips
(North Dakota State University, 2014)The first step in design of reliable systems is the ability to evaluate the reliability of the system. This is an important step in the process of designing reliable systems because design techniques that proactively improve ... -
Performance Enhancement of Pipeline ADCs
(North Dakota State University, 2014)The pipeline ADC is mainstream architecture in wireless communication and digital consumer products because of its speed, resolution, dynamic performance, and power consumption. However, there are three areas of concern ... -
Network Convergence in Multicarrier Hybrid Cellular Network
(North Dakota State University, 2014)In a multicarrier communication system with known channel state information at transmitter (CSIT), it is well-known that the water-filling power allocation scheme is optimal in achieving the Shannon capacity. However, in ... -
Detection and Quantification of Rare Analytes in Biological Samples using Dielectrophoretic Spectroscopy
(North Dakota State University, 2017)Novel techniques for Dielectrophoresis (DEP) crossover frequency calculation, positive dielectrophoretic spectroscopy and negative dielectrophoretic spectroscopy are proposed in this dissertation. A novel automated immunoassay ... -
Using Formal Methods to Validate the Usage, Protocols, and Feasibility in Large Scale Computing Systems
(North Dakota State University, 2014)A paradigm shift has occurred in the Information and Communication Technology sector. The main obstacle to relegate complex and sensitive tasks is not the inadequate speed and unsatisfactory computing power of the existing ... -
Zeroth Order Resonator (ZOR) Based RFID Antenna Design
(North Dakota State University, 2014)Meander-line and multi-layer antennas have been used extensively to design compact UHF radio frequency identification (RFID) tags; however the overall size reduction of meander-line antennas is limited by the amount of ... -
A New Methodology for the Design and Tuning of Robust PID Controllers in Electric Drives
(North Dakota State University, 2014)AC induction motor-drive systems are the backbone for numerous industrial applications, such as aerospace, medical equipment, and nuclear power plants. The control performance of electric drives is sensitive to several ... -
A Compact Cylindrical-Shape Microstrip Structure with Cloaking Properties for Mutual Coupling Reduction in Array Antennas
(North Dakota State University, 2014)A cylindrical-shaped microstrip structure with cloaking properties is presented as a shielding device to reduce the mutual coupling between two patch antennas. The surface comprises of a number of 2-port microstrip (2-PM) ... -
Analysis and Characterization of Cloud Based Data Center Architectures for Performance, Robustness, Energy Efficiency, and Thermal Uniformity
(North Dakota State University, 2014)Cloud computing is anticipated to revolutionize the Information and Communication Technology (ICT) sector and has been a mainstream of research over the last decade. Today, the contemporary society relies more than ever ... -
Design and Analysis of New Printed Wideband Antennas for Wireless Applications
(North Dakota State University, 2014)In this study a simple method to develop a wideband antenna is proposed. With this new technique a dipole antenna with a 48% frequency bandwidth is transformed to achieve a 120% frequency bandwidth for a voltage standing-wave ... -
A Metamaterial-Based Multiband Phase Shifter
(North Dakota State University, 2014)A design methodology for a multi-band phase shifter using a metamaterial-based transmission line was developed. This method is different in that the loaded-line phase shifter has a phase shift of 90 degrees at the center ... -
Adaptive Beamforming for Antennas on General Wedge- and Cylindrical-Shaped Surfaces
(North Dakota State University, 2014)Adaptive beamforming antennas capable of accommodating the growing number of wireless subscribers throughout the world has become an essential part of modern wireless systems. In this work, the beamforming of a conformal ... -
Investigation of the Effects of Radio Frequency Exposure on Mice
(North Dakota State University, 2017)Video summarizing a Ph.D. dissertation for a non-specialist audience. -
Multisine Excitation Design to Increase the Efficiency of System Identification Signal Generation and Analysis
(North Dakota State University, 2012)Reducing sample frequencies in measurement systems can save power, but reduction to the point of undersampling results in aliasing and possible signal distortion. Nonlinearities of the system under test can also lead to ... -
A Formal Verification Methodology for Real-time FPGA
(North Dakota State University, 2017)Real-time systems in safety-critical and mission-critical domains have stringent or hard timing constraints. The correctness of such systems is of prime importance to avoid any unacceptable consequences like a big financial ... -
A Phase Correction Technique Based on Spatial Movements of Antennas in Real-Time (S.M.A.R.T.) for Designing Self-Adapting Conformal Array Antennas
(North Dakota State University, 2017)This research presents a real-time adaptive phase correction technique for flexible phased array antennas on conformal surfaces of variable shapes. Previously reported pattern correctional methods for flexible phased array ... -
High-Power-Density Converter for Renewable Energy Application
(North Dakota State University, 2017)Due to the energy crisis and environmental pollution, renewable sources are more and more important. Power electronics technology is widely applied in these emerging applications and its function is to make the power ... -
High-Power, High-Efficiency, Multi-Functional CMOS Radio Frequency Integrated Circuit for Wireless Communication of Unmanned Aircraft System
(North Dakota State University, 2017)Recently the Unmanned Aircraft System (UAS) has become very popular due to its current and projected opportunities in diversified applications from surveillance to security to militry. The Federal Aviation Administration ... -
Conformal Antennas and Arrays with Layers Consisting of Copper and Graphene-based Conductors for Redundancy Properties
(North Dakota State University, 2017)Graphene is a new promising material with unique electrical, mechanical, optical and thermal characteristics. The use of graphene in the design of an antenna and other electromagnetic passive devices would be beneficial ...